Improvement in corn-planters



n M. Gauss. Corn-Planters.

Patented 1an. 5, 19115.4

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`of the seed-dropping apparatus.

- turns with the wheels.)

UNITED STATES MARSHALL GREGG, OF CALIFORNIA, MISSOURI, ASSIGNOR OFONE-HALF PATENT EEIcE.7

HIS RIGHT TO WILLIAM A. LYONS, OF OHAMOIS, MISSOURI.

IMPROVEMENT IN CORN-PLANTERS.

Specification forming part of Letters Patent No. 158,487, dated January5, 1875; application filed September 8, 1874.

To all whom t may concern Be it known that I, MAEsEALL GREGG, ofCalifornia, in the county of Moniteau and State of Missouri, haveinvented certain new and useful Improvements in Corn-Planters, of whichthe following is a specification:

My improvement relates to the construction The seedboxes are traversedby the axle-shaft, so that the rotation of the shaft acts to prevent thecorn Y from lodging in the seed-boxes. seed-slides are worked by arotating camwheel on the axle, associated with springs, the cam-wheelforcing the slides outward, and the springs drawing them inward. To stopthe movement of the seed-slides the springs are pressed outward by thearms of a lever, which holds the slides out of contact with the cams.

In the drawings, Figure lis a bottom view. Fig. 2 is a section at x,showing the parts beyond the section-linein elevation. Fig. 3 is asection through the end ot' a seed-slide and part of seed-box bottom.

A A are the ground-wheels, which are both fast to the axle-shaft B, (sothat the said shaft O O, Sto., are markers, so placed upon the rim ofthe wheel that they make impressions in the ground at points in linewith the spots where the corn is dropped. D D are seed-slides, whoseinner ends are in Contact with the inclined teeth or cams e of thecam-wheel E, which is fast upon the axle-shaft at its mid-length. As thecamwheel turns, it forces out the seed-slides D D simultaneously, and asthe salient parts of the cams e pass the ends of the slides, the latterare drawn inward by the springs FF. The fixed ends of the springs areattached to thefront cross-bar, G, ofthe frame. The frame haslongitudinal bars J K L, resting on the axle-shaft, and, in addition tothe bar G, has other transverse bars, H and I. M M are the seed-boxes.The axleshat't passes through the seed-boxes M M, so that the rotationotl the shaft prevents the corn from becoming jammed in the box whendropping is going on. The seed-boxes have a bottom, N, and a falsebottom, O, havin g', respectively, seed openings or holes a and 0. Thearrangement The is such that when the seed-slides are in their inwardposition the seed-holes d therein are in connection with the holes a inthe bottom, and when the seed-slides are in their outward position theholes d are in connection with those o, so that the said holes d becomecharged with seed, which is dropped on the next inward movement of theslides, when the holes d come in connection with the holes n. Betweenthe springs FF is a two-armed lever or spreader, P, whose ends p arearranged so that as the lever is turned into a transverse position, thesaid ends are brought in contact with the inner sides of the springs andforce them asunder,sothat the seed-slides are held outward, clear ofthecam-wheel E, and consequently the dropping of corn ceases. Theleverl? is fulorumed on a shaft, Q, having an arm, q, against which thefoot of the driver is pressed, to bring the leverl? into its operativeposition, (so as to hold the seed-slides at rest.) R R are the plows bywhich the furrows are opened to receive the seed. These plows areattached to curved beams S S, each ot' which is secured at the front endto a draw-bar, T, and a curved spring, U, the arrangement ot' the springbeing suoli as to tend to hold the plow in the ground, but yet to allowit to rise over any immovable obstacle, bythe action ot' the jumpingcolter V. The covering-plows W W have beams Y Y, similar to those S S,and are pivoted at their fore ends to the beams S S, so as to allow theplows an independent vertical movement. The plows W W are provided withjumping colters V V, in a similar manner to the plows R R, and for asimilar purpose. The rear ends otl the beams Y Y are connected togetherby a strut, Z, connected at mid-length by a rod, c, to the lever b. Whenthis lever is drawn forward., the plows W W are raised from the ground.The lever b is held in the forward position by catches c on a bar, d, atthe side of the lever. t is a spring, which rests on the lower arm ofthelever b, and, by holding the said arm forward, tends to hold the plows WW in the ground. ff are the lever-bars of a brake, by which the rotationof the wheels may be stopped at any time, so as to cause the wheels toslip upon the ground as the implement is drawn forward, to nia-ke thecorn dropping to correspond 'transversely with the rows previouslydropped.

For instance, supposing the dropping to occur a little too early, theWheels are checked in their rotation, and consequently the dropping madeto take place a little later, or farther on in the row. g is the tongue.h h are the singie-trees, connected directly to the saine eyebolts j jto Which the draw-rods T T are connected. l is the drivers seat.

I claim as my invention- 1. The seed-boxes M, secured to the frame, andhaving the axle-shaft B passing through them, in combination with theseed-dropping device D D, as and for the purpose set forth.

MARSHALL GREGG.

Witnesses: Y t

HENRY MARQUAND, L. W. SHOBE.

